ARC Ref 110 with KT 150 tubes


I am currently running a Ref 100 with KT 120 tubes, no probs, net gains on the old 6550s. But has anybody gone a stage further and used KT 150s? Any potential problems, you think?

Many thanks for advice.
ginellis1
Bifwynne..... I rather suspect that we, the Loyal ARC customer, may not see any such public proclamation until ARC have stockpiled sufficient KT150's to meet demand.

In the absence of any such affirmation from the horse's mouth, or should that read Ass?!!! and Were your Ref150 to have any factory warranty left on the clock, then I would suggest that the most pertinent source of any such confirmation would be your own Dealer, responsible, for honouring and facilitating the practicalities of that warranty, who presumably, will have seen, or at least be aware of, this mythical ARC memorandum.
@Jasper ... not sure I concur with the practical take of your last response. It would be a pure greed play by ARC to withhold the KT-150s approval if they otherwise would not damage the current ref line of amps. Sh*t, who is to say that even if ARC approves the KT-150 that I would buy from ARC .... for $200 a tube. I think not.

Next, my amp was purchased pre-owned from a dealer. Upshot is still no factory warranty. I am dubious that a dealer would go crosswise with ARC.

Having said that, one dealer did in fact post on anther A'gon thread double secret hearsay information sourced back to ARC that the KT-150 was approved for use in current ARC amps. When I spoke to ARC a week or so later, the tech folks denied the bona fides of the report because it came from a marketing guy ... not the tech department.

Go figure.

I'm a big boy. I'll make a decision shortly. If I opt for KT-150s, I'll take my chances.
I'm a big boy. I'll make a decision shortly. If I opt for KT-150s, I'll take my chances.
Please do it NOW!!! Beating a dead horse ... stuck in repeat wining with the SAME monologue.
It's spelled whining .. not wining. If you're going to chide me, at least spell it correctly! LOL
Jasper, If I may answer your question. I have had a thread running for about a year, on this subject. If you look towards the last few posts on

"New KT150 tubes?"
There is indeed a recent ARC pronouncement referred to, to the effect that KT150's are approved now, in the amps I mentioned. I suggest you look at that thread
David